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| - | ==PBX== | + | ==Configuration Samples== |
| - | An acronym for Private Branch eXchange. PBX telephone systems support incoming calls from the outside PSTN, placing calls between users' phones (also known as extensions) and other phones or the outside PSTN, conferencing other users together, recording voicemails and a variety of other advanced telecommunication functions. PBX systems are broadly broken into several categories: traditional (also known as legacy); converged (also known as hybrid) or pure IP, aka IP-PBX.
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| - | * '''Traditional PBX''' systems usually either don't support IP at all or they support it only with expensive add-on equipment.
| + | [[File:Pbx.png|link=PBXs]] [[File:Devices.png|link=Devices]] [[File:Pbx.png|link=PBXs]] |
| - | * '''Converged PBX''' systems support IP and PSTN connections with equal force. It is the most flexible and cost-effective model.
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| - | * '''IP-PBX''' systems, as the name implies, support only IP connectivity. Any PSTN connectivity must be achieved through external converters, known as Gateways.
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| - | '''PBX Examples'''
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| - | If you have a PBX and would like to see some examples on how to configure it, you can check our [[PBXs|PBX's]] article
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| - | <br><br><br>
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| - | ==Devices==
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| - | To be able to place or receive calls using VoIP, you may need a hardware setup that will allow you to use your regular phone (ATA) or a special phone that connects directly to VoIP networks (IP Phone).
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| - | * '''ATA:''' An '''Analog Telephone Adapter''' is a device used to connect one or more standard analog telephones to a digital telephone system (such as Voice over IP) or a non-standard telephone system.
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| - | * '''IP Phone:''' An IP Phone uses voice over IP (VoIP) technologies allowing telephone calls to be made over an IP network such as the Internet instead of the ordinary PSTN system.
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| - | '''Devices Examples'''<br>
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| - | If you have a specific device and would like to see some examples on how to configure it, you can check our [[Devices|Devices]] article
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| - | <br><br><br>
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| - | ==Softphones==
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| - | A softphone is a software program for making telephone calls over the Internet using a general purpose computer, rather than using dedicated hardware. Often a softphone is designed to behave like a traditional telephone, sometimes appearing as an image of a phone with a display panel and buttons with which the user can interact. A softphone is usually used with a headset connected to the sound card of the PC.
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| - | '''Softphone Examples'''
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| - | If you have a Softphone and would like to see examples on how to configure it, you can check our [[Softphones|Softphones]] article
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